Steam-trap.



No. 789,157. PATENTED MAY 9, 1905. R. D. KINNBY. STEAM TRAP.

APPLIOATION FILED AUG. 26.1904.

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Patented 'May 9, 1995.

PATENT ROBERT D. KINNEY, OF PHILADELPHIA, PENNSYLVANIA.

STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 789,157, dated May 9,1905. Application filed August 26, 1904. Serial No. 222,358.

To @ZZ whom t may concern:

Beit known that I, ROBERT D. KINNEY, a citizen of the United States,residing in the city and county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements in SteamTraps, of which the following is a specification, reference being hadtothe accompanying drawings.

My invention relates to devices for removing the water or liquid ofcondensation, te., from pipes and chambers containing steam or othergases under pressure without the loss of such steam or gas, and has forits object the providing of a complete, compact, and efiicient trap thatwill enable the inspection, cleaning, and repairing of its operatingparts without interfering with the removing flow of the condensed liquidwhile so doing, as also without the detachingef the trap from the pipesor chamber to which it is connected.

Further advantages of my said invention will more fully appear in thefollowing description and claims and by reference to the accompanyingdrawings, all of which will be readily understood by those skilled inthe art to which the invention appertains.

Referring to the drawings, Figure l represents a vertical section of mytrap, taken at the line B B of Fig. 2. Fig. 2 represents a like sectionat the line A A of Fig. l.

Similar reference characters indicate like parts in the differentviewsshown.

3 represents the main body or inclosing casing of the trap, and i aremovable section thereof secured thereto by means of bolts and nuts 6.The main body 3 is supported' by suitable legs 2O and 21 and is made ofany suitable material.

5 represents the bucket-float, and 9 the valve operated thereby, andwhich working parts of the trap are attached to the removable section 4:of the inclosing casing, as shown in Eig. 1 of the drawings.

The inlet-pipe leading to the trap is indicated by 7 and the outlet-pipeleading from the trap is indicated by 8. Both of these pipes areconnected by screw-threads or in other usual manner employed in themaking of connections of this kind.

In the conduit-passages of the trap are located stop-valves 10, 11, and12. The valves 10 and 1l are both fixed 'to and operated by one commonstem, 13, as shown. The valve 12 is operated by the stem 14. The stems13 and 14: are preferably provided with hand-wheels 15 and 16,respectively, for convenience in opening and closing the valves inconnection therewith. These valve-stems are packed in the usual mannerfor the purpose of making them steam and water tight at the pressureunder which the trap is employed.

The port or conduit-passage 17 is a continuation of the inlet-conduit tothe trap and may be provided with a strainer 18, if desired. The port orconduit-passage 2O is a part of the outlet-conduit of the trap and islocated part in the main body 3 and part in the removable section 4thereof, as shown in Fig. I

of the drawings.

22 is the usual pipe for conducting the water or other liquid to thevalve 9 by Way of the bottom of the bucket-iioat 5.

A blow-off outlet or drain to the main chamber of the trap may beprovided` as shown at 19, if desired. There may also be provided ahand-Wheel 23, attached to the rod 24, which is actuated longitudinallyby means of a section thereof being engaged by screw-threads to andpassing through the stuHing-box 25 for depressing theV bucket-iioat 5,and thereby opening the valve 9 without having to await the action ofthe filling of the bucket-Heat 5 (by which action it is operated whenthe trap is in use, as hereinafter described) for blowing out of dirtfrom the bucket-Heat 5, clearing the valves, piping, Sac., in case oftheir becoming clogged while in operation.

The operation of my said invention can now be readily understood. Wateror other liquid which is it desired to remove from pipes and chambersunder steam or other gaseous pressure is caused to collect and flow intothe trap through the inlet-pipe 7, the valves ll and l2 both being open,while valve l0 is closed. The water or other liquid is thus allowed toiiow through valve 12 and on through the port 17 into the chambercontaining the bucketiioat 5, causing the bucket-iioat 5 to rise, andthereby close valve 9. As the water or other liquid continues to enterthe trap it will over- IOO flow into the bucket-fioat 5 and finally by{illing it cause it to sink, and thereby opening the valve 9, when theforce of the steam or gas by its pressure will cause the water or otherliquid contained in the bucket-float 5 to pass up the pipe 22, on outthrough the valve 9 and port 20, and on through the dischargeoutlet 8from the trap, the How continuing until the bucket-float 5 is againHeated by its buoyancy in the surrounding water or liquid, thus closingthe valve 9 until the bucket-float again fills, when the same cycle ofoperations will be repeated.

When it is desired to inspect, clean, or repair the working parts of thetrap without interrupting the flow of the water or other liquid beingremoved from the pipes or chambers to which the trap is connected, thevalve 10 is opened and the valves 11 and l2 are closed, thus causing thewater or liquid of condensation, &c., to by-pass the trap through theopening 26, located in the interior walls of the casing 3 of the trap,thus giving direct communication between the inlet and outlet pipes 7and 8, respectively, by the opening of the valve 10. The removablesection 4 of the trap-inclosing casing can th en be unbolted and thebucket-oat 5 and other working parts of the trap removed therefrom andconveniently examined, cleaned, and repaired with out interrupting thefiow of the water or other liquid then being removed from the pipes orchambers to which the trap is connected, as also without disconnectingthe trap from the system to which it is connected, as also without theemployment of a separate system of by-pass pipes and valves heretoforeusually employed for such purposes.

It is obvious that the object of removing the working parts of my trapfor purposes of cleaning' and repair can be accomplished by omitting inthe construction the by-pass opening 26 and in lieu thereof make a solidwall between the inlet and outlet chambers, forming same integral withthe main body or casing 3of the trap, and locating the by-pass and stopvalves in the piping to which the trap is connected; but I preferlocating those valves so that their inclosing walls are formed integralwith the trap-casing or main body, as

shown on the drawings herewith.

Having thus described my said invention, what I claim as new, and desireto secure by Letters Patent, is-

1. A drain-trap provided with a valved bypass opening 26, formedintegral with the main body or casing 3 of the trap, and a drain-inletstop-valve l2, and a discharge-outlet stopvalve 1l, the inclosing wallsof said stopvalves being formed integral with the walls of said by-passopening;'substantially as and for the purposes shown and described.

2. A drain-trap provided with a valved bypass opening 26, formedintegral with the main body or casing 3 of the trap, and a drain-inletstop-valve 12, and a discharge-outlet stopvalve 11, the inclosing wallsof said stopvalves being formed integral with the walls of said by-passopening; in combination with a discharge-regulating valve 9, saidregulatingvalve being actuated by a fioat 5, and discharging into aconduit 2O formed integral with a removable section 4 of thetrap-casing, said float and also the discharge-regulating valve beingconnected to and removable from the trap with said section 4; allsubstantially as and for the purposes shown and described.

3. A drain-trap provided with a drain-inlet 7,' and discharge-outlet 8,and having a closed or solid wall between the same, the whole formedintegral with the main body or casing 3 of the trap; in combination witha dischargeregulating valve 9, said valve being actuated by a float 5and discharging into a conduit 20 formed integral with a removablesection 4 of the trap-casing, said float and also thedischarge-regulating valve being connected to and removable from thetrap with said section 4; all substantially as and for the purposesshown and described.

In testimony whereof I hereto afiix my signature in the presence of twowitnesses.

ROBT. D. K1N NEY.

Witnesses:

W. R.' WooTERs, CLARA A. Woo'rERs.

